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CVE-2026-47845 Details
Description
In specific scenarios, Reactor Netty HTTP Server may incorrectly evaluate the remote IP address when HAProxy Protocol is enabled. In order for this to happen, the application must be configured to use HAProxy Protocol. Reactor Netty 1.3.0 - 1.3.6 Reactor Netty 1.1.0 - 1.2.18 Reactor Netty 1.0.52 and earlier
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Aug 27, 2026Exploitation: NoneAutomatable: YesTechnical Impact: Partial
References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://spring.io/security/cve-2026-47845 | [email protected] | Vendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-290 | Authentication Bypass by Spoofing | CISA-ADP |
Affected Products
| Product | Versions |
|---|---|
| broadcom reactor netty | < 1.0.53 >= 1.1.0, < 1.2.19 >= 1.3.0, < 1.3.6.1 |
CPE
Remediation
| |
Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Sep 4, 2026 | Reanalysis | [email protected] |
| Sep 4, 2026 | Initial Analysis | [email protected] |
| Aug 27, 2026 | CVE Modified | CISA-ADP |
| Aug 27, 2026 | New CVE Received | [email protected] |